Got 4000 stars on GitHub and suddendly a publisher offered me a book deal.
Had some interviews and people told me, they already knew me from the news, where I got to via the 4k GitHub stars.
A React core dev starred it on GitHub.
I got about 4k stars for this and some news coverage (front-end/JS/React news)
Some publisher asked me if I want to turn it into a book, so he can sell it for/with me.
Later I had a few interviews where I was asked to show my GitHub account. When the interviewers saw the 4k repo they told me they read about it a few days ago in the news and now they were impressed because they talking to the creator of it in person.